On Fri, Dec 5, 2014 at 9:16 AM, Jose Fonseca <[email protected]> wrote:
> From: José Fonseca <[email protected]>
>
> Matches what u_vbuf_get_minmax_index() does.
Hm, nouveau nv50 (and probably nvc0) does:
if (ib->buffer) {
nv50->idxbuf.offset = ib->offset;
BCTX_REFN(nv50->bufctx_3d, INDEX, nv04_resource(ib->buffer), RD);
} else {
nv50->idxbuf.user_buffer = ib->user_buffer;
}
Is the offset really supposed to be applied to the user buffer? I
figured the point of the offset was that you couldn't provide an
offset into a pipe_resource otherwise, while with a user ptr, you can
just add it in yourself...
> ---
> src/gallium/auxiliary/indices/u_primconvert.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/auxiliary/indices/u_primconvert.c
> b/src/gallium/auxiliary/indices/u_primconvert.c
> index 4632781..eba1f9e 100644
> --- a/src/gallium/auxiliary/indices/u_primconvert.c
> +++ b/src/gallium/auxiliary/indices/u_primconvert.c
> @@ -137,8 +137,9 @@ util_primconvert_draw_vbo(struct primconvert_context *pc,
> src = ib->user_buffer;
> if (!src) {
> src = pipe_buffer_map(pc->pipe, ib->buffer,
> - PIPE_TRANSFER_READ, &src_transfer) +
> ib->offset;
> + PIPE_TRANSFER_READ, &src_transfer);
> }
> + src = (const uint8_t *)src + ib->offset;
> }
> else {
> u_index_generator(pc->primtypes_mask,
> --
> 2.1.0
>
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